Cho ΔABC vuông tại A; p/giác CD. Gọi H là hình chiếu của điểm B trên dg thẳng CD. Trên tia CD lấy điểm E sao cho H là trung điểm của BE. Gọi F là giao điểm của BH và CA. CMR: a) ^CEB=^ADC; ^EBH=^ACD b) BE vuông góc với BC c) DF vuông góc với DE

câu 1 1. Cho các từ sau: khó khăn, chậm chạp, mong ngóng, nhỏ nhẹ, mong mỏi, tươi tốt, tươi tắn, đỡ đần. Xếp các từ trên vào hai nhóm: từ ghép, từ láy. 2.Xác định nghĩa của từ "chạy" trong các kết hợp từ dưới đây rồi chỉ ra các từ đó được dùng theo nghĩa gốc hay nghĩa chuyển -Thi chạy 100 mét -Hàng bán chạy

Mọi người giúp mình với mình cần gấp

ai thi VMO ko giúp em câu tuyển học sinh thi IMO em ko tìm đc đáp án

-Can you play a football hay Can you play fooball ms đúng -Can you a daw hay Can you daw ms đúng -Can you play fly a kite hay Can you play a fly a kike hay Can you fly a kike md đúng -Can you play a badminton hay Can you play badminton ms đúng - -Can you Paint hay Can you play a Paint ms đúng -

Vẽ nhóm BFF 5 người (1 người tọc ngắn xoăn, 4 người tóc dài) Yêu cầu: Vẽ có tâm xíu

Anh chị hộ e với ạ e đang cần gấp

1. She _____ to be a ballet dancer when she _____ up. A) go / grow B) going / grows C) goes / grows D)’s going / grows 2. We _____ to stay in a villa in France this summer. A) going B) ‘re going C) to go D) go 3. I’m going _____ Peter tonight. A) see B) seeing C) to see D) saw 4. Careful! The glass is _____ fall. A) going B) going to C) goes to D) go to 5. We _____ to Paris this weekend. A) going B) go C) ‘re going D) to go 6. I’m saving my money _____ a CD player. A) buying B) to buy C) buy D) bought 7. We’re going to Paris _____ a holiday. A) to have B) have C) having D) had 8. They _____ both _____ to become TV stars. A) are / go B) are / going to C) is / going D) are / going 9. What’s she going _____ ? A) do B) doing C) to do D) did 10. She wants _____ in Paris and Moscow. A) dancing B) dance C) is dancing D) to dance 11. They _____ going _____ a car this year. A) aren’t / get B) aren’t / getting C) aren’t / to get D) aren’t / got 12. She _____ traveled to most parts of the world. A) have B) is C) has D) will 13. _____ you ever _____ in a car accident? A) Has / been B) Have / been C) Have / be D) Have / was 14. She _____ to Russia two years ago. A) go B) went C) gone D) goes 15. “_____ you _____ to Russia.” - “Yes, I _____ .” A) Had / be / haven’t C) Have / be / have B) Has / been / have D) Have / been / have 16. Have you _____ your homework? A) do B) to do C) done D) did 17. I haven’t done it _____ . A) yet B) already C) just D) since 18. I’ve _____ the latest Star Wars film. I _____ it last week. A) seen / saw B) see / saw C) seen / seen D) saw / saw 19. She’s _____ the letter. She _____ it yesterday. A) wrote / wrote B) written / written C) wrote / written D) written / wrote 20. They’ve _____ lunch. They _____ it at 12 o’clock. A) have / had B) had / have C) had / having D) had / had

đỐT CHÁY M GAM CHẤT X CẦN DÙNG 6,4 G KHÍ O2 THU ĐƯỢC 4,4 GAM CO2 VÀ 3,6 GAM H20 A.VIẾT SƠ ĐỒ PHẢN ỨNG XẢY RA B.TÍNH KHỐI LƯỢNG M?

I. Complete the following sentences with will or won'tand a verb from the box buy phone take invite meet offer live end use chat